# Regelia

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Genus of flowering plants

For the genus of bromeliads, see [Neoregelia](/source/Neoregelia).

Regelia Regelia megacephala inflorescence in Royal Botanic Gardens, Cranbourne Scientific classification Kingdom: Plantae Clade: Embryophytes Clade: Tracheophytes Clade: Spermatophytes Clade: Angiosperms Clade: Eudicots Clade: Rosids Order: Myrtales Family: Myrtaceae Subfamily: Myrtoideae Tribe: Melaleuceae Genus: Regelia Schauer Species See text

***Regelia*** is a [genus](/source/Genus) of [flowering plants](/source/Flowering_plant) in the family [Myrtaceae](/source/Myrtaceae) and is [endemic](/source/Endemic_(ecology)) to the [south-west](/source/Southwest_Australia) of [Western Australia](/source/Western_Australia). The genus is composed of five [species](/source/Species) of small leaved, [evergreen](/source/Evergreen) shrubs which have heads of flowers on the ends of branches which continue to grow after flowering. Another species, previously known as *Regelia punicea* and which is endemic to [Kakadu National Park](/source/Kakadu_National_Park) in the [Northern Territory](/source/Northern_Territory), has been transferred to *[Melaleuca punicea](/source/Melaleuca_punicea)*.

## Description

Plants in the genus *Regelia* are woody, evergreen shrubs ranging in height from 1–6 metres (3–20 ft). Their leaves are small, arranged in opposite pairs or spirally and are noted for bearing essential oils. Their flowers are pinkish purple, rarely red, and are arranged in heads on the ends of branches which continue to grow after flowering. The flowers have 5 [sepals](/source/Sepal), 5 [petals](/source/Petal) and numerous [stamens](/source/Stamen) arranged in 5 bundles around the edge of the flower. In many respects, they are similar to plants in the [genera](/source/Genus) *[Melaleuca](/source/Melaleuca)*, *[Calothamnus](/source/Calothamnus)*, *[Conothamnus](/source/Conothamnus)* and *[Phymatocarpus](/source/Phymatocarpus)* but differ from them either in the attachment of the [anthers](/source/Stamen) to their stalks, the way they open to release [pollen](/source/Pollen), or the number of seeds in the fruits. Plants in the genus *Regelia* have their anthers attached at the base (rather than the side) and open at terminal pores (rather than slits). The fruits are woody [capsules](/source/Capsule_(botany)) with three [valves](/source/Ovary_(botany)) and have a maximum of two fertile seeds in each valve.[1][2]

## Taxonomy and naming

The genus *Regelia* was first formally described in 1843 by [J.C.Schauer](/source/Johannes_Conrad_Schauer) in the journal *Linnaea; Ein Journal für die Botanik in ihrem ganzen Umfange*[3][4] and the first species he named was *[Regelia ciliata](/source/Regelia_ciliata)*. The name *Regelia* honours [German](/source/Germans) gardener and [botanist](/source/Botanist) [Eduard August von Regel](/source/Eduard_August_von_Regel).[1]

## Distribution and habitat

All five *Regelia* species are found in the [South West Botanical Province](/source/Southwest_Australia). They grow in sand or sandy soil, often on the margins of winter-wet depressions.[5]

## Conservation

Two species, *[Regelia cymbifolia](/source/Regelia_cymbifolia)* and *[Regelia megacephala](/source/Regelia_megacephala)*, are classified as "Priority Four" by the Western Australian government Department of Parks and Wildlife[1] meaning that they are rare or near threatened.[6]

## Species

There are currently five recognized species of *Regelia*. A sixth species, *Regelia punicea* was originally formally described in 1984 by N.B.Byrnes as *Melaleuca punicea*,[7] renamed *Regelia punicea* by B.A.Barlow in 1987,[8] then *Petraeomyrtus punicea* by [L.A.Craven](/source/Lyndley_Craven) in 2010[9] and finally in 2013, returned to *[Melaleuca punicea](/source/Melaleuca_punicea)* by Craven on the basis of molecular data.[10]

- *[Regelia ciliata](/source/Regelia_ciliata)* [Schauer](/source/Johannes_Conrad_Schauer) ;

- *[Regelia cymbifolia](/source/Regelia_cymbifolia)* ([Diels](/source/Ludwig_Diels)) [C.A.Gardner](/source/Charles_Gardner_(botanist)) ;

- *[Regelia inops](/source/Regelia_inops)* (Schauer) Schauer;

- *[Regelia megacephala](/source/Regelia_megacephala)* C.A.Gardner ;

- *[Regelia velutina](/source/Regelia_velutina)* ([Turcz.](/source/Nikolai_Turczaninow)) C.A.Gardner – Barrens regelia.

## References

1. ^ [***a***](#cite_ref-FloraBase_1-0) [***b***](#cite_ref-FloraBase_1-1) [***c***](#cite_ref-FloraBase_1-2) ["*Regelia Schauer*"](https://florabase.dpaw.wa.gov.au/browse/profile/21844). *[FloraBase](/source/FloraBase)*. Western Australian Government [Department of Biodiversity, Conservation and Attractions](/source/Department_of_Biodiversity%2C_Conservation_and_Attractions).

1. **[^](#cite_ref-Kubitzki_2-0)** K. Kubitzki, ed. (1990). [*The families and genera of vascular plants*](https://books.google.com/books?id=_hHvYeQYTTEC&dq=Regelia&pg=PA237). Berlin: Springer. p. 237. [ISBN](/source/ISBN_(identifier)) [9783642143960](https://en.wikipedia.org/wiki/Special:BookSources/9783642143960). Retrieved 26 August 2015.

1. **[^](#cite_ref-APNI(1)_3-0)** ["*Regelia*"](https://biodiversity.org.au/boa/instance/apni/664504). APNI. Retrieved 26 August 2015.

1. **[^](#cite_ref-Schauer_4-0)** Schauer, Johannes Conrad (1843). ["Genera Myrtacearum nova vel denuo recognita"](https://www.biodiversitylibrary.org/page/106913#page/249/mode/1up). *Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange*. **17**: 243–244. Retrieved 26 August 2015.

1. **[^](#cite_ref-Flora_5-0)** Paczkowska, Grazyna; Chapman, Alex R. (2000). *The Western Australian flora : a descriptive catalogue*. Perth: Wildflower Society of Western Australia. pp. 400–401. [ISBN](/source/ISBN_(identifier)) [0646402439](https://en.wikipedia.org/wiki/Special:BookSources/0646402439).

1. **[^](#cite_ref-DPAW_6-0)** ["Conservation codes for Western Australian flora and fauna"](http://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation_code_definitions.pdf) (PDF). Western Australian Government Department of Parks and Wildlife. Retrieved 26 August 2015.

1. **[^](#cite_ref-APNI(2)_7-0)** ["*Melaleuca punicea*"](https://biodiversity.org.au/boa/instance/apni/27846). APNI. Retrieved 26 August 2015.

1. **[^](#cite_ref-APNI(3)_8-0)** ["*Regelia punicea*"](https://biodiversity.org.au/boa/instance/apni/523241). APNI. Retrieved 26 August 2015.

1. **[^](#cite_ref-APNI(4)_9-0)** ["*Petraeomyrtus punicea*"](https://biodiversity.org.au/boa/instance/apni/664054). APNI. Retrieved 26 August 2015.

1. **[^](#cite_ref-Brophy_10-0)** Brophy, Joseph J.; Craven, Lyndley A.; Doran, John C. (2013). [*Melaleucas : their botany, essential oils and uses*](http://aciar.gov.au/files/mn156-prelims_1.pdf) (PDF). Canberra: Australian Centre for International Agricultural Research. p. 16. [ISBN](/source/ISBN_(identifier)) [9781922137517](https://en.wikipedia.org/wiki/Special:BookSources/9781922137517). Retrieved 26 August 2015.

Taxon identifiers Regelia Wikidata: Q2712906 Wikispecies: Regelia APNI: 97690 FloraBase: 21844 GBIF: 2693689 GRIN: 10293 iNaturalist: 525372 IPNI: 1124025-2 NCBI: 73771 NZOR: c308581c-da25-437e-8110-1eb17570c588 Open Tree of Life: 133489 POWO: urn:lsid:ipni.org:names:1124025-2 WFO: wfo-4000032671

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Adapted from the Wikipedia article [Regelia](https://en.wikipedia.org/wiki/Regelia) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Regelia?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.